document.write("<table>");
for (let i = 1; i <= 9; i++) {
    document.write("<tr>");
    for (let j = 1; j <= i; j++) {
        document.write("<td>");
        document.write(i + "*" + j + "=" + (i * j));
        document.write("</td>");
    }
    document.write("</tr>");
}
document.write("</table>");

document.write("你好，\"pzhu\"!"+"<br>");
document.write("hello,'world'!");